Thaddeus Thurkell (1632—1692) was a wizard who had seven sons who were all Squibs. He transfigured them into hedgehogs out of disgust. The birth of a single Squib to a magical parent is known to be a rare event. This would seem to indicate that the case of the Thurkell family was quite exceptional.

Thaddeus Thurkell (1632—1692) was a wizard who had seven sons who were all Squibs. He transfigured them into hedgehogs out of disgust. The birth of a single Squib to a magical parent is known to be a rare event. This would seem to indicate that the case of the Thurkell family was quite exceptional.